The fossil record of parasites is limited thus far. A survey of the fossil record shows that some
modes of preservation show a higher potential for the preservation of parasitic remains or …

† Isoxys is a worldwide distributed bivalved arthropod known almost exclusively from
Cambrian Burgess Shale-type Lagerstätten. Outline analyses using 34 specimens of the …

Guangweia cheni gen. et sp. nov. is an exceptionally preserved frond-like fossil from the
early Cambrian Guanshan biota of SW China, which shares morphological similarities with …

Simple Summary Small skeletal fossils are reported for the first time from the early Cambrian
Guojiaba Formation, southern Shaanxi, China. All specimens were recovered from bioclastic …

The Guanshan Biota (South China, Cambrian, Stage 4) contains a diverse assemblage of
biomineralizing and non-biomineralizing animals. Sitting temporally between the Stage 3 …

The Cambrian radiation is characterized by the emergence of diverse bilaterian animal
phyla and the establishment of complex marine ecosystems. The Guanshan Biota records …

Stem-group euarthropods are important for understanding the early evolutionary and
ecological history of the most species-rich animal phylum on Earth. Of particular interest are …

Skeletal concentrations are conspicuous taphofacies in the marine record and have been
recorded from a wide range of sedimentary facies in Phanerozoic strata, providing baseline …

Hyoliths, known globally from the Cambrian to the Permian are generally recognized as
early lophotrochozoan animals of uncertain phylogenetic position. The calcareous …

Biologically controlled mineral crystals producing organic-inorganic composites (hard
skeletons) by metazoan biomineralizers has been an evolutionary innovation for more than …